write basic cli for init and import

corrlib/cli.py

@@ -0,0 +1,60 @@
+from typing import Optional
+import typer
+from corrlib import __app_name__, __version__
+from .initialization import create
+from .toml import import_toml
+app = typer.Typer()
+
+
+def _version_callback(value: bool) -> None:
+    if value:
+        typer.echo(f"{__app_name__} v{__version__}")
+        raise typer.Exit()
+
+
+@app.command()
+def importer(
+    path: str = typer.Option(
+        str('./corrlib'),
+        "--dataset",
+        "-d",
+        prompt="Which corrlib instance?"
+    ),
+    file: str = typer.Argument(
+    ),
+    copy_file: bool = typer.Option(
+        bool(True),
+        "--save",
+        "-s",
+        prompt="Copy config file?",
+    ),
+) -> None:
+    import_toml(path, file, copy_file)
+    return
+
+
+@app.command()
+def init(
+    path: str = typer.Option(
+        str('./corrlib'),
+        "--dataset",
+        "-d",
+        prompt="Dataset location?",
+    ),
+) -> None:
+    create(path)
+    return
+
+
+@app.callback()
+def main(
+    version: Optional[bool] = typer.Option(
+        None,
+        "--version",
+        "-v",
+        help="Show the application's version and exit.",
+        callback=_version_callback,
+        is_eager=True,
+    )
+) -> None:
+    return